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Cactus Wireless Flash Transceiver V5 Duo
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Cactus Wireless Flash Transceiver V5 Duo

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More and more photographers nowadays use wireless flash triggering systems to command off-camera lighting, whether in studio or in the rugged outdoors. With a wireless flash triggering system, a light source – e.g. flash or studio strobe – is freed from hot shoe or cable connection to camera, allowing it to be placed virtually anywhere, at any angle, direction or distance, thus opening up endless possibilities for professional and amateur photographers alike.

A wireless flash triggering system consists of one transmitting unit and as many receiving units as desired. The transmitter, connected to camera through hot shoe, controls signal transmission, while each receiver is attached to one external flash or strobe via hot shoe or cable. On release of the camera shutter, a wireless signal is sent from the transmitter to all receivers, setting off all light sources within the system.

In another giant step forward, Cactus Image is proud to introduce its latest flash triggering system - the totally re-engineered and re-designed Cactus Wireless Flash Transceiver V5 (Cactus V5). Like its predecessors, Cactus V5 remains powerful and reliable, and is ideal for photography of any kind.

Sporting a new transceiver design and powered by 2 AAA 1.5V batteries, each Cactus V5 unit can serve as either a wireless flash transmitter or wireless flash receiver. Different transmitter/receiver combinations are now possible, giving photographers unparalleled flexibility and control over their Strobist setups.

Frequency Self-Tune (FST), a new and groundbreaking feature, enables Cactus V5 to automatically tune itself to its last working frequency when exposed to extreme weather conditions such as a sudden and large temperature change. Not seen in any other solution on the market, FST effectively minimizes "no fires".

Moreover, Multi-Channel Triggering allows simultaneous triggering of up to four (4) sets of light sources, all controlled through one transmitting unit and camera. This is very useful in situations where multiple sets of flashes normally set to different channels need to be set off together for one or a series of shots.

Other improvements in Cactus V5 include support for any maximum sync speed supported by camera up to 1/1000s, working frequency of 2.4GHz, effective range up to 100 meters, implementation of a low battery indicator and 16-channel rotary dial for channel selection, and dual hot shoe design to allow concurrent firing of an on-camera flash. Together with the provided PC Sync and 3.5mm cables and 6.25mm plug adapter, photographers may use Cactus V5 with any** portable flash and studio strobe with trigger voltage up to 300V.

Each Cactus V5 unit is manufactured using RoHS compliant electronic components and parts. For more details, read the Cactus V5's RoHS Statement.

**Notes on compatibility:

  • Cactus V5 does not work with V4, V2s or V2;
  • Cactus V5 does not transmit TTL information;
  • Cactus V5 does not work with Canon ELAN 7E, 10D, 300D (Digital Rebel / Kiss Digital);
  • Some dedicated flashes (e.g. Nissin Di-622 and Di-466 (Canon and Nikon dedicated versions), Sunpak PZ42x and PZ30, Sigma EF-530/500 DG ST for Canon, etc.) are triggered via system-specific pins instead of the central contact of the hot shoe. Cactus V5 does not work with these flash models. To check whether your dedicated flash unit is compatible with Cactus V5, set the flash unit to M (manual) mode and attach it to a camera of other brand (e.g. attaching a Nikon TTL flash to a Canon DSLR camera). If the flash can be triggered, it will work with Cactus V5.
  • Tested with the following flash models:
    • Cactus AF50, AF45, KF36;
    • Canon SpeedLite 600EX-RT, 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EX II, 430EX, 430EZ, 420EX, 420EZ, 380EX, 200E;
    • Metz 58AF, 52 AF-1, 50 AF-1, 48AF, 44 AF-1, 36 AF-5;
    • Nikon SpeedLite SB-910, SB-900, SB-800, SB-700, SB-600, SB-80DX, SB-28 SB-26, and SB-25;
    • Nissin MG8000, Di700, Di622 MK II, Di466 for Four Thirds (Olympus and Panasonic), Di866 MK I, Di866 MK II;
    • Olympus FL-50R, FL-50, FL-36R, FL-36;
    • Pentax AF-540 FGZ, AF-360 FGZ, AF-400 FT, AF-240 FT;
    • Sigma EF-530 DG Super, EF-530 DG ST (for Nikon only), EF-500 DG Super, EF-500 DG ST (for Nikon only), EF-430;
    • Sunpak Auto 2000DZ, 622 Pro, 433AF, 433D, 383, 355AF, 344D, 333D;
    • Vivitar 285HV, 285, 283 (some has a 600V trigger voltage, check with a voltmeter), DF-400MZ, DF-340MZ;
    • Yongnuo YN-560 III, YN560-II, YN560, YN462, YN460-II;
    • Godox TT660, TT560, TT520, CF-18;

Specifications (each V5 transceiver):

  • Working radio frequency: 2.4GHz;
  • 16 channels selectable;
  • Support sync speed: up to 1/1000 second (subject to camera’s sync speed limitation);
  • Compatible with all DSLR and SLR cameras with standard ISO hot shoe or PC sync output;
  • Compatible with portable flashes and studio strobes;
  • Low battery indicator;
  • Maximum effective area: 100 meters (328 feet);
  • Operating temperature: -20°C to +50°C (-4°F to 122°F);
  • Flash voltage handling: up to 300V;
  • Camera voltage handling: up to 6V;
  • Power input: 2 x AAA 1.5V batteries;
  • Connection port: 3.5mm (1/8") mono mini-phone;
  • Standard 1/4" screw mount;
  • Dimensions: 82mm (L) x 70mm (W) x 37mm (H);
  • Weight: 58g;
  • Designed using RoHS compliant parts and components
  • Package contents:
    • Cactus V5 Transceiver x 2;
    • Flash Stand (FS-5) x 2;
    • 3.5mm Plug Cable (CA-350) x 1;
    • 6.35mm Plug Adapter (PA-635) x 1;
    • PC Sync Cable (CA-100) x 1;
    • AAA Battery x 2;
      Owing to the change of policy of IATA (International Air Transport Association), all electronic items with battery inside are not allowed to ship out from Hong Kong. From 4th October, 2013, all batteries which should have been included in our items will be taken away before shipment. We are sorry for the inconvenience caused.
    • English User Manual x 1.
  • One Year Manufacturer Warranty.

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We’re Closing!

Gadget Infinity started almost a decade ago, sourcing the best price-performance photographic and two-way radio gear for fellow photography enthusiasts. It has been a wonderful journey sharing the many location portrait techniques with you on our YouTube channel. Over the years our passion in flash photography grew so much that we ventured into creating our own wireless flash triggering system – Cactus.

Starting next month, we will be putting all of our time and effort into product development at Cactus so we will be closing our operation at Gadget Infinity on August 30, 2016. Rest assured, the 30-day return policy still applies on your orders made on or before the date of our store closure. If you have any questions or concerns, please contact us at service@gadgetinfinity.com.

It will be a good bye but not a sad one as we will still stick around. Come visit us at

Thank you again for your support over the years and best wishes!

From everyone at Gadget Infinity.

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